Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Answer question numbers 1, 2 and 3
![inital [A] inital [B] initial rate of formation of [C]
еxp
(mol L-) (mol L-')
(mol L- see")
2.5x 104
5.0x 104
1.25 x 102
0.10
0.20
0.10
0.10
0.50
2
3
0.20
1. The data given above were obtained for the reaction represented below. What is the experimental rate law
for this reaction?
A+B2 20
A. rate = k[A][B]
B. rate = k[A][B]?
C. rate = k[A][B]
D. rate = k[A] 2 [B]²
2. According to the rate law for the reaction, a decrease in the concentration of iodide ion has what effect on
this reaction?
A. The rate of the reaction decreases and the value of the rate law constant decreases
B. The rate of the reaction decreases and the value of the rate law constant remains the same
C. The rate of the reaction remains the same and the value of the rate law constant increases
D. The rate of the reaction decreases and the value of the rate law constant increases
3. How does a catalyst increase the rate of a chemical reaction?
A. By changing the magnitude of the enthalpy change
B. By providing a pathway for the reaction that has a lower activation energy
C. By decreasing the potential energy of the products
D. By increasing the potential energy of the reactants](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F16eff55f-eb24-4621-8b0d-100dea7f47bc%2F16f2da05-2a6d-4144-bd6f-0ca9676821fc%2Fhhcmv5a_processed.png&w=3840&q=75)
Transcribed Image Text:inital [A] inital [B] initial rate of formation of [C]
еxp
(mol L-) (mol L-')
(mol L- see")
2.5x 104
5.0x 104
1.25 x 102
0.10
0.20
0.10
0.10
0.50
2
3
0.20
1. The data given above were obtained for the reaction represented below. What is the experimental rate law
for this reaction?
A+B2 20
A. rate = k[A][B]
B. rate = k[A][B]?
C. rate = k[A][B]
D. rate = k[A] 2 [B]²
2. According to the rate law for the reaction, a decrease in the concentration of iodide ion has what effect on
this reaction?
A. The rate of the reaction decreases and the value of the rate law constant decreases
B. The rate of the reaction decreases and the value of the rate law constant remains the same
C. The rate of the reaction remains the same and the value of the rate law constant increases
D. The rate of the reaction decreases and the value of the rate law constant increases
3. How does a catalyst increase the rate of a chemical reaction?
A. By changing the magnitude of the enthalpy change
B. By providing a pathway for the reaction that has a lower activation energy
C. By decreasing the potential energy of the products
D. By increasing the potential energy of the reactants
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